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* [Bug c++/66281] New: [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022
@ 2015-05-25 20:42 ldionne.2 at gmail dot com
2015-06-14 17:27 ` [Bug c++/66281] " trippels at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: ldionne.2 at gmail dot com @ 2015-05-25 20:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Bug ID: 66281
Summary: [C++14][Variable templates] internal compiler error:
in tsubst, at cp/pt.c:12022
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ldionne.2 at gmail dot com
Target Milestone: ---
Hi,
The following code causes an ICE on GCC trunk (couple of weeks old):
------------------------------------------------------------------------
template <typename ...> auto f() { return 1; }
template <char>
auto variable_template2 = f();
template <char c>
auto variable_template1 = variable_template2<c>;
template int variable_template1<'c'>;
------------------------------------------------------------------------
Sample command line (lines trimmed):
------------------------------------------------------------------------
› ~/code/gcc5/bin/g++ --version
g++ (GCC) 6.0.0 20150423 (experimental)
Copyright (C) 2015 Free Software Foundation, Inc.
› ~/code/gcc5/bin/g++ -std=c++1y ~/Desktop/bug.cpp
~/Desktop/bug.cpp: In instantiation of ‘auto variable_template1<'c'>’:
~/Desktop/bug.cpp:9:14: required from here
~/Desktop/bug.cpp:4:6: internal compiler error: in tsubst, at cp/pt.c:11973
auto variable_template2 = f();
^
~/Desktop/bug.cpp:4:6: internal compiler error: Abort trap: 6
g++: internal compiler error: Abort trap: 6 (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
------------------------------------------------------------------------
Regards,
Louis Dionne
>From gcc-bugs-return-487236-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon May 25 20:57:09 2015
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From: "mikpelinux at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/66252] [6 regression] bootstrap comparison failures on sparc-linux
Date: Mon, 25 May 2015 20:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf252
--- Comment #1 from Mikael Pettersson <mikpelinux at gmail dot com> ---
Started with r222267:
fc6cc27b3f46a6f70f610ec93a1c5e68d83c933b is the first bad commit
commit fc6cc27b3f46a6f70f610ec93a1c5e68d83c933b
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue Apr 21 12:52:43 2015 +0000
2015-04-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/65650
* tree-ssa-ccp.c (valid_lattice_transition): Allow lattice
transitions involving copies.
(set_lattice_value): Adjust for copy lattice state.
(ccp_lattice_meet): Do not merge UNDEFINED and a copy to the copy
if that doesn't dominate the merge point.
(bit_value_unop): Adjust what we treat as varying mask.
(bit_value_binop): Likewise.
(bit_value_assume_aligned): Likewise.
(evaluate_stmt): When we simplified to a SSA name record a copy
instead of dropping to varying.
(visit_assignment): Simplify.
* gimple-match.h (gimple_simplify): Add another callback.
* gimple-fold.c (fold_stmt_1): Adjust caller.
(gimple_fold_stmt_to_constant_1): Likewise - pass valueize
for the 2nd callback.
* gimple-match-head.c (gimple_simplify): Add a callback that is
used to valueize the stmt operands and use it that way.
* gcc.dg/tree-ssa/ssa-ccp-37.c: New testcase.
* gcc.dg/tree-ssa/forwprop-11.c: Adjust.
* gcc.dg/tree-ssa/ssa-fre-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-4.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-32.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222267
138bc75d-0d04-0410-961f-82ee72b054a4
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/66281] [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022
2015-05-25 20:42 [Bug c++/66281] New: [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022 ldionne.2 at gmail dot com
@ 2015-06-14 17:27 ` trippels at gcc dot gnu.org
2015-07-16 9:11 ` rguenth at gcc dot gnu.org
2015-08-06 4:15 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-06-14 17:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |trippels at gcc dot gnu.org
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Here is a variant:
template <int> int bool_;
template <char n> auto digit(bool_<n>);
template <char, int, int y> auto evaluate(digit<y>);
auto boost_hana_tmp_40 = evaluate<'1', '+', '2'>;
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/66281] [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022
2015-05-25 20:42 [Bug c++/66281] New: [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022 ldionne.2 at gmail dot com
2015-06-14 17:27 ` [Bug c++/66281] " trippels at gcc dot gnu.org
@ 2015-07-16 9:11 ` rguenth at gcc dot gnu.org
2015-08-06 4:15 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-07-16 9:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|5.2 |5.3
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 5.2 is being released, adjusting target milestone to 5.3.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/66281] [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022
2015-05-25 20:42 [Bug c++/66281] New: [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022 ldionne.2 at gmail dot com
2015-06-14 17:27 ` [Bug c++/66281] " trippels at gcc dot gnu.org
2015-07-16 9:11 ` rguenth at gcc dot gnu.org
@ 2015-08-06 4:15 ` jason at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: jason at gcc dot gnu.org @ 2015-08-06 4:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 5.3/6.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-05-25 20:42 [Bug c++/66281] New: [C++14][Variable templates] internal compiler error: in tsubst, at cp/pt.c:12022 ldionne.2 at gmail dot com
2015-06-14 17:27 ` [Bug c++/66281] " trippels at gcc dot gnu.org
2015-07-16 9:11 ` rguenth at gcc dot gnu.org
2015-08-06 4:15 ` jason at gcc dot gnu.org
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